Lesson Overview
Unit Description
Lesson Description for Day
State Standards
Linear Equations
Title: Linear Equations
Author: William Danes
Subject: Math
Grade Level(s): 6–8, 9–12
Duration: 1 Day
Graphing Linear Equations
Examine the effects of changing m or b within the equation y=mx b
Teks 6
The student is expected to investigate, describe, and predict the effects of the changes in m and b on the
graph of y=mx b

Goals
Unit Goals:
TLW understand how to graph equations of lines using a point (including y-intercept) and the slope.

Lesson Goals:
TLW be able to plot a point, slope, and sketch the graph of a line passing through the point with the given
slope.
TLW be able to document and predict the impact of changes to m and b of the equation y=mx b

Methods
Anticipatory Set:
Slope cheer
List components need to calculate slope.

Introduce and Model New Knowledge:
Display through power point image an equation and then demonstrate what would happen if you increased
m by 2 and b by 1.

Provide Guided Practice:
Dispplay equation and then increase b by 5 and have the class volunteer to explain that would happen .
Offer three more examples of this. Have students volunteer to explain what would happened. By using the
document camera the students can present the answers to the whole class.

Wrap-Up
Provide Independent Practice:
Give students 5 equations with 2 options for either m or b and have the students explain what those
changes would do to the resulting graph. These equations can be presented on the screen via a projector.
Give each student an equation and two options for m and b give the students the address for the class
blog. Then give the driections that sudents are to go to the blog and explain what happens when m and b
are changed.

Assessment
Formative/Ongoing Assessment:
Examine each student's blog for correct information concerning changes to the graph of y=mx b

Summative/End Of Lesson Assessment:
Examine each student's blog for correct information concerning changes to the graph of y=mx b

Materials
Other Resources
Graphing Calculator
A TI graphing calculator
Power point
a power point that demonstrates the changs to the graph of y=mx+b



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